Originally Posted by
lamont2718
Most agents will still allow non-status companions on a separate PNR to check bags for free and use the Sky Priority lane as long as you explain that they are with you.
The risk of splitting the PNR is around potentially not getting some of the benefits to carry-over that would otherwise be automatic. e.g., party being kept together in the event of IRROPS, bags, Sky Priority, selection of EC seats at the same cost as the OP, etc.